Time telling
There are 3 basic ways of telling time. a) rotational : rotation of the earth b) dynamic: motion of the moon and planets c) atomic: oscillation within atoms.
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Rotation Facts
Rotation facts and facts about rotations, from the Random Facts shelf.
5 facts on this shelf
Did the Three Gorges Dam slow Earth's rotation?
NASA calculated that the water held by the Three Gorges Dam lengthened Earth's day by about 0.06 microseconds.
Does Venus spin backward?
Venus spins backward compared with most planets, so on Venus the Sun rises in the west.
Which planet has the shortest day?
Jupiter has the shortest day of any planet, about 10 hours.
Why does Uranus spin on its side?
Uranus is tilted about 98 degrees, so it basically rolls around the Sun on its side.